An extremely interesting and also very rare item.
An uncatchable forgery of a very rare banknote, which is the 50 zloty from 1919.
The forgery is betrayed primarily by the banknote's series - B, which was not operated by the issuer (original banknotes are known only with the A series designation).
In the rim, a hard-to-see imitation of a watermark.
Corner loss, limp paper, but overall presentation still correct.
Extremely interesting value, worthy of bidding at a stationary auction.